Another view almost universally advocated, is to avoid drugs. The importance of this and its union with right exercise have been demonstrated in the impressive language of fable. "There is a story in the 'Arabian Nights' Tales'," says Addison, "of a king who had long languished under an ill habit of body, and had taken abundance of remedies to no purpose. At length, says the fable, a physician cured him by the following method: he took a hollow ball of wood, and filled it with several drugs; after which he closed it up so carefully that nothing appeared. He likewise took a mallet, and, after having hollowed the handle and that part which strikes the ball, he inclosed in them several drugs after the same manner as in the ball itself. He then ordered the sultan, who was his patient, to exercise himself early in the morning with these rightly prepared instruments, till such time as he should sweat; when, as the story goes, the virtue of the medicaments perspiring through the wood, had so good an influence on the sultan's constitution, that they cured him of an indisposition which all the compositions he had taken inwardly had not been able to remove. "This Eastern allegory is finely contrived to show us how beneficial bodily labor is to health, and that exercise is the most effectual physic."